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Editorial Team
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Asked: 2026-05-25T21:31:50+00:00

Have a very large ASP.NET application I’m creating Automated UI test cases for, part

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Have a very large ASP.NET application I’m creating Automated UI test cases for, part of the final part of this test case is to remove the user it just created (so we keep the same details every single test run, and will expect the same results, no data will change.) and so I took to a stored procedure to do this.

The SP works fine in SQL, have tested it. Have now mapped it into LINQ2SQL. However when it is ran I get this:

System.InvalidOperationException: ‘System.Void’ is not a valid return type for a mapped stored procedure method.

The bottom line is that my SP doesn’t have a return type, I don’t want it to.

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1 Answer

  1. Editorial Team

    By default, the successful execution of a stored procedure will return the numeric value 0.

    Can you change the return type for your LINQ2SQL mapping to int? If you don’t care about the returned value, you can just ignore it.

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